/**
 * Copyright (c) 2023 OceanBase
 * OceanBase is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */

 #ifndef OCEANBASE_SRC_SQL_ENGINE_EXPR_OB_EXPR_EMBEDDED_VEC_H_
 #define OCEANBASE_SRC_SQL_ENGINE_EXPR_OB_EXPR_EMBEDDED_VEC_H_
 #include "sql/engine/expr/ob_expr_operator.h"

 namespace oceanbase
 {
 namespace sql
 {
 class ObExprEmbeddedVec : public ObFuncExprOperator
 {
 public:
   explicit ObExprEmbeddedVec(common::ObIAllocator &alloc);
   virtual ~ObExprEmbeddedVec() {}
   static int pack_embedded_res(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res, const ObString &str);
   virtual int calc_result_typeN(ObExprResType &type,
                                 ObExprResType *types,
                                 int64_t param_num,
                                 common::ObExprTypeCtx &type_ctx) const override;
   virtual int calc_resultN(common::ObObj &result,
                            const common::ObObj *objs_array,
                            int64_t param_num,
                            common::ObExprCtx &expr_ctx) const override;
   virtual common::ObCastMode get_cast_mode() const override { return CM_NULL_ON_WARN;}
   virtual int cg_expr(
       ObExprCGCtx &expr_cg_ctx,
       const ObRawExpr &raw_expr,
       ObExpr &rt_expr) const override;
   static int generate_embedded_vec(
           const ObExpr &raw_ctx,
           ObEvalCtx &eval_ctx,
           ObDatum &expr_datum);

 private :
   //disallow copy
   DISALLOW_COPY_AND_ASSIGN(ObExprEmbeddedVec);
 };
 }
 }
 #endif /* OCEANBASE_SRC_SQL_ENGINE_EXPR_OB_EXPR_EMBEDDED_VEC_H_ */
